97 lines
2.5 KiB
Java
97 lines
2.5 KiB
Java
/*
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* Copyright (C) 2009 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.soundcloud.android.crop;
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import android.graphics.Bitmap;
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import android.graphics.Matrix;
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/*
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* Modified from original in AOSP.
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*/
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class RotateBitmap {
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private Bitmap bitmap;
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private int rotation;
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public RotateBitmap(Bitmap bitmap, int rotation) {
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this.bitmap = bitmap;
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this.rotation = rotation % 360;
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}
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public void setRotation(int rotation) {
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this.rotation = rotation;
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}
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public int getRotation() {
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return rotation;
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}
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public Bitmap getBitmap() {
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return bitmap;
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}
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public void setBitmap(Bitmap bitmap) {
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this.bitmap = bitmap;
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}
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public Matrix getRotateMatrix() {
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// By default this is an identity matrix
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Matrix matrix = new Matrix();
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if (bitmap != null && rotation != 0) {
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// We want to do the rotation at origin, but since the bounding
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// rectangle will be changed after rotation, so the delta values
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// are based on old & new width/height respectively.
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int cx = bitmap.getWidth() / 2;
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int cy = bitmap.getHeight() / 2;
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matrix.preTranslate(-cx, -cy);
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matrix.postRotate(rotation);
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matrix.postTranslate(getWidth() / 2, getHeight() / 2);
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}
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return matrix;
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}
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public boolean isOrientationChanged() {
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return (rotation / 90) % 2 != 0;
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}
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public int getHeight() {
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if (bitmap == null) return 0;
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if (isOrientationChanged()) {
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return bitmap.getWidth();
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} else {
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return bitmap.getHeight();
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}
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}
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public int getWidth() {
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if (bitmap == null) return 0;
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if (isOrientationChanged()) {
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return bitmap.getHeight();
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} else {
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return bitmap.getWidth();
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}
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}
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public void recycle() {
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if (bitmap != null) {
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bitmap.recycle();
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bitmap = null;
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}
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}
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}
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